56431312 has 20 divisors (see below), whose sum is σ = 124955296. Its totient is φ = 24184800.

The previous prime is 56431301. The next prime is 56431321. The reversal of 56431312 is 21313465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251814 + ... + 252037.

Almost surely, 2^56431312 is an apocalyptic number.

It is an amenable number.

56431312 is an abundant number, since it is smaller than the sum of its proper divisors (68523984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56431312 is a wasteful number, since it uses less digits than its factorization.

56431312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503866 (or 503860 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 56431312 is about 7512.0777418767. The cubic root of 56431312 is about 383.5659519849.

Adding to 56431312 its reverse (21313465), we get a palindrome (77744777).

The spelling of 56431312 in words is "fifty-six million, four hundred thirty-one thousand, three hundred twelve".